Flow | Medical Art

Alveoli of the Lung – Factory Workers

This is a drawing of a cluster of alveoli surrounded by the capillary network, fed by an arteriole in blue, and drained by a venule in red. The second image shows the exchange of life giving oxygen for the by product of metabolic activity – carbon dioxide

Courtesy of Ashley Davidoff M.D.

32164 32165 code RS lung alveolus respiratory bronchiole artery vein pulmonary capillary normal anatomy histology drawing

Tubes of the Body

32368 Davidoff MD

The Circulation

01896.800 aorta thorax abdomen thoracic aorta abdominal aorta circulation arterioles venules capillaries normal anatomy physiology pulsatile pulse Davidoff art Courtesy Ashley Davidoff MD

Systemic Venous Circulation

01896 b03.800 venous system veins blue body collection return heart liver Davidoff art

Normal Pressures

49483b01 heart cardiac LV left ventricle aorta aortic systemic circulation capillary capillaries arterioles venules right atrium RA right ventricle RV normal physiology pressures hemodynamics Davidoff MD Davidoff art

Pulmonary Trunk

46649c01.800 lung pulmonary artery pulmonary trunk Davidoff Trees Davidoff Art

Another tree of Functional Efficiency

The Splenic Artery

Pulmonary Trunk

46649c01.800 lung pulmonary artery pulmonary trunk Davidoff Trees Davidoff Art

Aorta and Circulation

The heart and lungs are positioned at the centre of all the organs in the body and they are understandably considered vital organs. Think of yourself as a little red cell within the vast and powerful environment of the circulatory system. Listen and feel the power of the pulse and the rush of all the rivers going back and forth, hither and thither, and around and around – imagine what goes on inside the system all the time – it is probably like walking through a rain forest with huge waterfalls, winding rivers and rivulets – a mixture of gushing power and calm meandering flow- but the colors are reds and blues instead of greens and yellows! Courtesy Ashley Davidoff MD 32059d01 code cardiac heart circulation artery vein introduction drawing Davidoff art

Red White and Blue

39533 This image combines the coronal view with the axial view and reflects the intimate relationships that the adrenals have with the kidneys as well as the great vessels of the abdomen. They literally have their fingers on the pulse of the aorta (red overlay)and the inferior vena cava (IVC) (blue overlay) code adrenal kidney relations anatomy Davidoff art

End Point of the Arterial Circulation is at the Capillaries and is also the Beginning of the Venous Circulation

32368b05.800 cardiovascular system heart cardiac artery arteries capillary capillaries arterioles venules veins negative firces positive forces road highway TCV the common vein applied biology Davidoff art Davidoff MD

A Simple Tube

72845.800 aorta flow principles structure laminar flow turbulent flow normal Davidoff Art Courtesy Ashley Davidoff MD 72835.800 72839 72831.800 72845.800 49483b01

The aorta is curved in shape and elastic in nature while blood is not a simple fluid and hence special circumstances exist

72831.800 aorta flow principles structure laminar flow turbulent flow normal tube Davidoff Art Courtesy Ashley Davidoff MD 72835.800 72839 72831.800 72845.800 49483b01

Note the difference in the pressures between the left side of the circulation and the right. The left ventricular pressure reaches a systolic of 120mmHg, while the right atrial pressure is close to zero. This large difference allows blood to flow through the circulation. pressure principles

Major Forces

A Pump, Elasticity, Peripheral Resistance and a Sump

72839 Davidoff Art Courtesy Ashley Davidoff MD 72835.800 72839 72831.800 72845.800 49483b01

Laminar flow

This diagram reflects the laminar flow showing the almost parallel lines of flow that is characteristic of flow in the smaller tubes. Under resting conditions, laminar flow exists from the medium-sized bronchi onward down to the bronchioles. During exercise, the air flow is accelerated, and laminar flow may be confined only to the very small airways.

Courtesy Ashley Davidoff MD 42433b04.jpg

Parabolic Flow – Highest Velocity in Center and Lowest on the Endothelium

47678d05 aorta blood flow principles velocity parabolic Laminar flow is the normal condition for blood flow throughout most of the circulatory system. characterized by concentric layers of blood move in parallel down the length of a blood vessel. highest velocity (Vmax) isin the center of the vessel. lowest velocity (V=0) is along the vessel wall. T flow profile is parabolic occurs in long, straight blood vessels, under steady flow conditions. Davidoff art Courtesy Ashley Davidoff MD

Parabolic Flow – Highest Velocity in Center and Lowest on the Endothelium

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aorta blood flow principles velocity parabolic Laminar flow is the normal condition for blood flow throughout most of the circulatory system. characterized by concentric layers of blood move in parallel down the length of a blood vessel. highest velocity (Vmax) isin the center of the vessel. lowest velocity (V=0) is along the vessel wall. T flow profile is parabolic occurs in long, straight blood vessels, under steady flow conditions. Davidoff art Courtesy Ashley Davidoff MD

Turbulent flow

This drawing shows the lines and circles of noisy turbulent flow, which is characteristic of flow in the larger airways.

Courtesy of Ashley Davidoff M.D. 42434b07

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